公开(公告)号：ES2183055T3

公开(公告)日：2003-03-16

申请号：ES97111738

申请日：1997-07-10

Applicant: DEGUSSA

Inventor： SAUER JORG DR ,  VON HIPPEL LUKAS DR ,  ARNTZ DIETRICH DR ,  BOCK WOLFGANG DR

IPC: B01J23/04 ,  B01J23/30 ,  B01J37/02 ,  C07B61/00 ,  C07C319/00 ,  C07C319/08 ,  C07C321/04

Abstract: In an aluminium oxide (I) catalyst for the synthesis of methyl mercaptan containing 5-25 wt.% potassium tungstate (II) as promoter with respect to active (I), (II) is deposited in 2 portions. (I) is first coated with the first portion of (II) by impregnation in excess aqueous solution, then dried at elevated temperature. Then the second portion is applied by pore volume impregnation. The catalyst precursor is then dried at elevated temperature and calcined at 200-600 degrees C.

公开(公告)号：CZ20010548A3

公开(公告)日：2001-10-17

申请号：CZ20010548

申请日：2001-02-13

Applicant: DEGUSSA

Inventor： OSTGARD DANIEL DR ,  SAUER JORG DR ,  FREUND ANDREAS DR ,  BERWEILER MONIKA ,  HOPP MATTHIAS DR ,  VANHEERTUM RUDOLF DR ,  GIRKE WALTHER

IPC: B01J25/00 ,  B01J20060101 ,  B01J23/70 ,  B01J23/72 ,  B01J23/847 ,  B01J23/86 ,  B01J23/89 ,  B01J37/00 ,  C01G3/00 ,  C07B35/04 ,  C07B61/00 ,  C07C20060101 ,  C07C51/00 ,  C07C51/16 ,  C07C51/23 ,  C07C51/295 ,  C07C55/06 ,  C07C55/07 ,  C07C59/06 ,  C07C227/02 ,  C07C229/08 ,  C07C229/12 ,  C07C229/16 ,  C07F9/38 ,  C22C9/00 ,  C22C9/01 ,  C22F1/00 ,  C22F1/08

CPC classification number: B01J25/00 ,  B01J23/8472 ,  B01J23/868 ,  B01J23/8926 ,  C07C51/295 ,  C07C227/02 ,  C07C59/06 ,  C07C55/07 ,  C07C229/16

公开(公告)号：ES2281394T3

公开(公告)日：2007-10-01

申请号：ES01128595

申请日：2001-11-30

Applicant: DEGUSSA

Inventor： OSTGARD DR DANIEL ,  BERWEILER MONIKA ,  RODER STEFAN ,  SAUER JORG DR ,  JAEGER BERND DR ,  FINKE NORBERT DR

IPC: C07C209/48 ,  C07B61/00 ,  C07C209/52 ,  C07C211/36

Abstract: Procedimiento para la preparación de isoforona-diamina a partir del isoforona-nitrilo, de la isoforona-nitrilo-imina o de mezclas que contienen isoforona-nitrilo e isoforona-nitrilo-imina, mediante hidrogenación aminante en presencia de por lo menos amoníaco e hidrógeno, utilizándose un catalizador de Raney moldeado a base de cobalto, caracterizado porque el catalizador de Raney se presenta en la forma de cuerpos huecos.

公开(公告)号：ES2154874T3

公开(公告)日：2001-04-16

申请号：ES97122374

申请日：1997-12-18

Applicant: DEGUSSA

Inventor： HOFEN WILLI ,  BOCK WOLFGANG DR ,  RAUTENBERG STEPHAN DR ,  SAUER JORG DR ,  ARNTZ DIETRICH DR ,  GOEDECKE RALF DR

IPC: C07C319/02 ,  C07C319/28 ,  C07C321/04

公开(公告)号：ES2166029T3

公开(公告)日：2002-04-01

申请号：ES97111737

申请日：1997-07-10

Applicant: DEGUSSA

Inventor： SAUER JORG DR ,  BOCK WOLFGANG DR ,  VON HIPPEL LUKAS DR ,  BURKHARDT WERNER ,  RAUTENBERG STEPHEN DR ,  ARNTZ DIETRICH DR

IPC: B01J23/04 ,  B01J23/30 ,  B01J35/10 ,  B01J37/02 ,  C07B61/00 ,  C07C319/08 ,  C07C321/04

Abstract: In a moulded aluminium oxide catalyst containing an alkali tungstate s promoter, used for synthesis of methyl mercaptan, the promoter is caesium tungstate (I) in an amount > 15 to 40 wt.% with respect to the total amount of catalyst.

公开(公告)号：CZ2001548A3

公开(公告)日：2001-10-17

申请号：CZ2001548

申请日：2001-02-13

Applicant: DEGUSSA

Inventor： OSTGARD DANIEL DR ,  SAUER JORG DR ,  FREUND ANDREAS DR ,  BERWEILER MONIKA ,  HOPP MATTHIAS DR ,  VANHEERTUM RUDOLF DR ,  GIRKE WALTHER

IPC: B01J25/00 ,  B01J20060101 ,  B01J23/70 ,  B01J23/72 ,  B01J23/847 ,  B01J23/86 ,  B01J23/89 ,  B01J37/00 ,  C01G3/00 ,  C07B35/04 ,  C07B61/00 ,  C07C20060101 ,  C07C51/00 ,  C07C51/16 ,  C07C51/23 ,  C07C51/295 ,  C07C55/06 ,  C07C55/07 ,  C07C59/06 ,  C07C227/02 ,  C07C229/08 ,  C07C229/12 ,  C07C229/16 ,  C07F9/38 ,  C22C9/00 ,  C22C9/01 ,  C22F1/00 ,  C22F1/08

Abstract: Raney copper which is doped with at least one metal from the group comprising iron and/or noble metals is used as a catalyst in the dehydrogenation of alcohols.

公开(公告)号：ES2154873T3

公开(公告)日：2001-04-16

申请号：ES97121628

申请日：1997-12-09

Applicant: DEGUSSA

Inventor： HOFEN WILLI ,  BOCK WOLFGANG DR ,  RAUTENBERG STEPHAN DR ,  SAUER JORG DR ,  ARNTZ DIETRICH DR ,  GOEDECKE RALF DR

IPC: B01J21/04 ,  B01J23/30 ,  C07B61/00 ,  C07C319/08 ,  C07C321/04

Abstract: A process for the continuous production of methyl-mercaptan (I) comprises (i) reacting a mixture of methanol and hydrogen sulphide (H2S) in the vapour phase at 300-500 degrees C and 5-15 bar on an alumina-based catalyst bed and (ii) separating (I) from the gas mixture obtained by absorption and distillation, with recycling of unreacted methanol and H2S, removal of inert gas and waste water, and replacement of used methanol and H2S. The starting gas mixture is obtained by (a) compressing fresh H2S to an intermediate pressure (P1) with addition of liquid methanol, (b) adding the recycled H2S and compressing the mixture to operating pressure (P2), (c) adding more methanol in the form of vapour to give a compressed mixture with a mol ratio of (H2S):(methanol) = 1.1-3, (d) preheating the gas mixture to 150-200 degrees C, (e) heating to reaction temperature using the heat of reaction released on the catalyst and (f) reaction on the catalyst bed.